Internal-combustion engine.



W. E. ADAMS. 1 INTERNAL GOMBUSTION ENGINE.

2111011111011 FILED JUNE 24, 1909.

rammed Aug. 29, 1911.

2 SHEETS-SHEET 1.

w: E. ADAMS. v INTERNAL COMBUSTION ENGINE. APPLICATION IILED'JUNE 24, 1909.

Patented Aug. 29, 19:1.

2 SHEETS-$112111 2.

description of the invention, such as will WILLIAM E. ADAMS, Oh SALEM, MASSACHUSETTS.

INTERNAL-COMBUSTION EN GINE.

Application filed June 24, 1909. Serial No. 503,991.

To all when; it may concern:

Be it known that I, WILLIAM E. ADAMS, a

citizen of the United States, residing at- Sa lem, inthe county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Internal-Gomlmstion Engines; and I;do hereby declare the following to he a full, clear, and exact enable others skilled in, the art to which it appertains to make and use the same.

. This invention relates to a combined internal combustion engine and air coinpressor. v One object of the invention is'toprovide a combined internal combustion. engine and air compressor which .is entirely free from valve gearing A further object is to provide a device-of the charncier above mentioned which is' compact and simple in construct-1011,. etlicient in operation and-economical in the costof in no wise limited thereto but is adapted foran engine having any number of cylinders.

The several featurcsof the invention will be clearly understood-from an inspection of, the accompanying drawings and the following detailed descriptiomof the construction shown therem.

In the drawmgsflFrgure Lisa-central,

the'air admission valves; Fig. 2 is a front elevatlon Wltli one of the unitsgn section;

Fig'. 3 is an end elevation as viewed from -.is provid d at 'tslowergend' with n-late; '1

V Specification of Letters Iiatent. P t t A 29,

the right-hand side of Fig. 2; and Fig. 4is

a fragmentary vertical, sectional view taken pressor.

through the discharge valves of the air com-. 1

.As shown in the drawings, the combined v engine and air compress'or comprises three units which are identical in construction and thevd escriptionof one will s'uflice for all.

The crank shaft 1 is journaled insuitable bearings 2-v-vvhich are =formed on :the .crank :9

casings 4., A ifly wheel 6 is mounted upon i one end of the crank shaft anda beveled gear] is-monntedynpon theother end and meshes with" a similar gear 8 "which is 2 -mounted upon'a vertical .shaftt) journaled in a bearing 10 formed on a ;bracket 12 see cured to theengine frame. JThe shaft :9 may, be connected -to drive any ,suitable form of commutator or 1 spark ;timer (not shown) 1 The engine comprises an iufiperb cylinderam erianda .14 which formsian iexplosionic lower cylinder 16, which,v together with crank casing/1, formiacompressionfchaml ber, Located between the upper :and lowercylinders ofthe engine 18 an intermediate cylinder .18 which ,formstheair eom ressor cylindei.- Apiston'rod 20extends tn'ongh the cylinder -1S and intothe cylinders 14 and 16. This piston rod passes through suitable stufiing boxes'2l and'22 formedon the cylinder heads '24,and25 which separate the I cylinder 18 -from the upperandlowercylin-' ders of the gas .en ine. A piston 26 is mounted upon the -'p1ston:rod .20 within the -cylinder 18, andtwo sets of inlet and dis charge valves are provided; thus. constitute ing-the air compressor, adouble acting cempressor. Apiston 28 jszsecured to the lower end of thepiston rod.20-Withint-he cylinder 16 and is;.prov ided'rvith dependinglugs =29 'whichreceive aesh'aft or-qwristq pin,.30 .ab out which the 5 nppen end of the. conneetingrod 32 is joutnaled. .Thealowertend ofsaid con- :nctingrod-iisionrn alediabout; the crank 34,

vertical section of one'unit-ta-ken through- A passage -361.is, f0 unedginthe lwgalls. of; the

lower, intlimediate and uppencylinders'and' V port 3'. W,hich jl'iifio'rds eoiiiinuniceitiontyith the compression chamber. The upper cylinder M is provided with a port 38 which communicates with the passage 36. The explosive charge is introduced into the crank casing 4 in a well known manner and compressed by the piston 28 upon its downward stroke and forced through the port 37, passage 36 and port 38 into the explosive chamber 14; above the piston H which is mounted upon the upper endof the rod20. An exhaust port 40 is formed in the walls of the cylinder 14 and communicates with a passage 42 whereby the products of combustion .may be discharged. A spark plug may be cap 54 which is screw-threaded to fit the interior of a boss 55 formed on thecylinder 18. The outer face of'the cap 54 is a skeleton as shown in Fig. 2; Embracing thevalve stem 52 is a coiled spring 57 which rests at one end againstthe outer face of the cap 54: and its outer end rests against a collar 58 held upon the valve stem 52 by means of nuts 60. Ports 62 and 63 are formed inthe walls of the cylinder 18 to admit the air which passes through the valves 50 and 51.

The cylinder 18 is also provided with two discharge valves and 71 which open ontwardly, each mounted upon a valve stem 72 which passes through a cap 74 which is scrmv-threaded into a boss 75 formed upon the cylinder 18. A coiled spring 76 embraces the valve stem 72 and is interposed between a collar 77 on the valve stem and the outer face of the cap 74. Ports 78 and'80 afford a meansmf communication between the interior of the caps 72 and the air coma pressor cylinder. It will be noted that all of the valves for admitting the air and discharging theair from the air compressor are pressure operated. The caps74 communicate with a T-shaped pipe 82 which is connected to a pipe 84 leading to a. compressed air reservoir.

From the construction above set forth, it

will he observed that upon the down strokevalve 30. lhc explosive charge in the crank casing and cylinder 16 will be compressed and forced through the port 37, passage 36 and port 38 into the explosion chamber 14 after the piston 47 uncovers the port 38, where it will be exploded after compression in said last mentioned chamber. Upon the up stroke of the piston rod 20 the air will be compressed upon the upper side of the piston 26 and discharged through the port 80, valve 70 and pipe 84, and air will be drawn into the cylinder below-the piston valve gearing necessary to control the operation of the various valves and by locat-. mg the air compressor cylinder between the compression and explosion chambers of the engine, a doubleactin'g air compressor is provided which requires the minimum amount of space.

Having explained the nature and object of the invention and specifically described one form ofdevice in whichitfl maybe embodied, what I claim is 1. Acombine'd Internal combustion motor and air compressor having, in combination, an explosion chamber, a gas compression chamber, means for affording comn nnication between said chambers an air compression chamber located between said chambers and entirelylclosed therefrom, and pistons operating in all of said chambers, substantially as described.

2. A combined internal combustion motor 'and air compressor having, in combination,

an explosion chamber, a gas compression chamber, means for affording communication between the gas compression chamber and explosion chamber, an air cmnpression chamber entirely closed from the other two chambers, a piston rod passing through all of said chambers, a piston operating in each of said chambers, the pistons all being mounted upon the common piston rod, substantially as described.

3. A combined internal combustion motor and air compressor having, incmnbiuation, an explosion chamber, a gas compression chamber, means for all'ordihg communica tion between the two chambers, an air compression chamber between the said two chambers, and entirely closed from communication therewith, a piston rod passing through the said chamlmrs, and a plurality of pistons mounted upon the rod, one piston being positioned in each chamber substantially as described.

4. A combined internal combustion motor and air compressor having, in comlunahon, an explosion chamber, a gas compression chamber, means for affording e0n1municainternal combustion motor, snbetentiuiiy as tion between the two chambers, a piston 01 described. 10 wa ting in the explosion chamber, an an In testimony whereofI afiix my signature compressor located between the two chamin presence of two. Witnesses. hers and opera ted upon the movement of the WILLIAM E. ADAMS. piston in the explosion chamber, the air Witnesses:

eon'lpressoi' adapted to deliver air to an ex- FRED O. FISH,

ierna] point which is independent of the WILLIAM J. SPERL. 

